3028261 has 8 divisors (see below), whose sum is σ = 3267864. Its totient is φ = 2795520.

The previous prime is 3028247. The next prime is 3028271. The reversal of 3028261 is 1628203.

3028261 = 1230² + 1231².

3028261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1515361 + 1512900 = 1231^2 + 1230^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3028261 - 2⁵ = 3028229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3028241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780 + ... + 2581.

It is an arithmetic number, because the mean of its divisors is an integer number (408483).

Almost surely, 2^3028261 is an apocalyptic number.

3028261 is the 1231-st centered square number.

It is an amenable number.

3028261 is a deficient number, since it is larger than the sum of its proper divisors (239603).

3028261 is a wasteful number, since it uses less digits than its factorization.

3028261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3431.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 3028261 is about 1740.1899321626. The cubic root of 3028261 is about 144.6764247160.

The spelling of 3028261 in words is "three million, twenty-eight thousand, two hundred sixty-one".